Let's divide 398285 by 89
We want to figure out the number of times 398285 can be divided by 89.

On to step 1:
If we divide 3 by 89, we get 0 and a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 89

Step 2:
When dividing 39 by 89, we get 0 with a remainder of 39.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 39, we end up with 39.
Take the next digit (8) from the dividend and append it to 39, then repeat: 398 / 89

Moving on to step 3:
If we divide 398 by 89, we get 4 and a remainder of 42.
Write down 4 as next digit of the result. 
Result so far: 4.0
Deduct 356 from 398 and we're left with 42.
Fetch the next digit (2) from the dividend, attach it to 42 and continue: 422 / 89

On to step 4:
422 divided by 89 is 4 with a remainder of 66.
The number 4 becomes the next digit in our result. 
Result so far: 44.0
If we subtract 356 from 422, we get 66.
Take the next digit (8) from the dividend and append it to 66, then repeat: 668 / 89

Advancing to step 5:
89 can be fit into 668 7 times, resulting in a remainder of 45.
Put 7 as the next digit of the answer. 
Result so far: 447.0
Deduct 623 from 668 and we're left with 45.
Bring next digit (5) of the dividend behind the 45 and repeat the process: 455 / 89

On to step 6:
89 goes into 455 5 times with a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 4475.0
The remainder is 10 after subtracting 445 from 455.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 7:
89 goes into 100 1 times with a remainder of 11.
Record the quotient 1 as the next digit in the result. 
Result so far: 4475.1
The remainder is 11 after subtracting 89 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 8:
When dividing 110 by 89, we get 1 with a remainder of 21.
Put 1 as the next digit of the answer. 
Result so far: 4475.11
Subtract 89 from 110 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

The final outcome is 4475.11, with a leftover of 0.021.